I have had over 6 years experience in the modeling world from the time I was 15 until about 21 years of age. What I can tell you is that you would be better off finding a personal photographer with experience working with modeling agencies, and experience working with children. Modeling schools tend to be rip offs, asking you to put money up front, as well as giving them money for each session you would take your child to. I was in a modeling school for about a year, and my mother put up a whole lot of unneeded cash. Eventually I was able to find a good photographer who did a composite for me, as well as start a portfolio that I could take with me when meeting with agents. I was signed by a modeling agency, and started working on catalogs, magazines, and runway shows. If this modeling school asks you to put up any money, I would avoid taking your child to it.
If this is an Agency/or school, attend the appointment regardless to see what they would offer, and if the amount, if any that you would have to give them.
If it is an Agency, and they want to sign you, they should not be asking you for any money, but ask you to sign a contract with them stating that your child is signed by them, which will enable them to recieve a certain percentage of the amount that your child will recieve on each of the jobs she worked . They also will be responsible for finding jobs for your daughter, and help with creating a portfolio/composite of pictures.